Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hideaki Souma | Save The Planet Co. | 1 |
| 1 | Norimitsu Konno | Nippon Steel | 1 |
| 1 | Ryuichi Chiba | The Japan Steel Works | 1 |
| 1 | Yohzoh Hosotani | Nippon Steel | 1 |
| 1 | Satoru Matsumi | The Japan Steel Works | 1 |
| 1 | Akiyoshi Fuji | The Japan Steel Works | 1 |
| 1 | Keizo Onishi | The Japan Steel Works | 1 |
| 1 | Jyuzo Shibata | Nippon Steel | 1 |
| 1 | Shizuo Takahashi | Hitachi | 1 |